-er -ic c-- ccc ccd cce cci cco ccp ccr ccv cdc cdd cde cdi cdo cdp cdr cdv ce- cec ced cee cei ceo cep cer cev ci- cic cid cie cii cio cip cir civ co- coc cod coe coi coo cop cor cov cpc cpd cpe cpi cpo cpp cpr cpv crc crd cre cri cro crp crr crv cvc cvd cve cvi cvo cvp cvr cvv dcc dcd dce dci dco dcp dcr dcv ddc ddd dde ddi ddo ddp ddr de- dec ded dee dei deo dep der dev di- dic did die dii dio dip dir div doc dod doe doi doo dop dor dov dpc dpd dpe dpi dpo dpp dpr dpv drc drd dre dri dro drp drr drv dvc dvd dve dvi dvp dvr ec- ecc ecd ece eci eco ecr ecv ed- edc edd ede edi edo edp edr eec eed eee eeo eep eer eev eic eid eie eii eio eip eir eiv eo- eoc eod eoe eoi eoo eop eor ep- epc epd epe epi epo epp epr erc erd ere eri ero erp err erv evc evd eve evi evo evp evr evv i-d i-v icc icd ice ici ico icp icr icv idc idd ide idi ido idp idr idv ie- iec ied iee iei iep ier iev iic iid iie iii iio iip iir io- ioc iod ioe ioi ioo iop ior iov ipc ipd ipe ipi ipo ipp ipr ipv ir- irc ird ire iri iro irp irr irv ivc ivd ive ivi ivo ivp ivr ivv o-i oc- occ ocd oci oco ocp ocr ocv odc odd ode odi odo odp odr odv oec oed oee oei oeo oep oer oic oid oie oii oio oip oir oiv oo- ooc ood ooi ooo oop oor oov op- opc opd ope opi opo opp opr opv or- orc ord ore ori oro orp orr orv ov- ovc ovd ove ovi ovo ovp ovv p-p pcc pcd pce pci pco pcp pcr pcv pdc pdd pde pdi pdo pdp pdr pdv pec ped pee pei peo pep per pev pic pid pie pii pio pip pir piv poc pod poe poi poo pop por pov ppc ppd ppe ppi ppo ppp ppr ppv prc prd pre pri pro prp prr prv pvc pvd pve pvi pvo pvp pvr pvv rcc rcd rce rci rco rcp rcr rcv rdc rdd rde rdi rdo rdp rdr rdv re- rec red ree rei reo rep rer rev ric rid rie rii rio rip rir riv roc rod roe roi roo rop ror rov rpc rpd rpe rpi rpo rpp rpr rpv rrc rrd rri rrp rrr rvc rvd rve rvi rvo rvp rvr rvv v-e vcc vcd vce vci vco vcp vcr vdc vdd vde vdi vdo vdp vdr vdv vec ved vee vei veo vep ver vi- vic vid vie vii vio vip vir viv voc vod voe voi voo vop vor vov vpc vpd vpe vpi vpo vpp vpr vrc vrd vre vri vrp vrr vvc vvi vvo vvr vvv